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25957-39-5

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25957-39-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25957-39-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,9,5 and 7 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 25957-39:
(7*2)+(6*5)+(5*9)+(4*5)+(3*7)+(2*3)+(1*9)=145
145 % 10 = 5
So 25957-39-5 is a valid CAS Registry Number.

25957-39-5SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 15, 2017

Revision Date: Aug 15, 2017

1.Identification

1.1 GHS Product identifier

Product name sodium,3-phenyloxirane-2-carboxylic acid

1.2 Other means of identification

Product number -
Other names Sodium Z-3-phenyl oxirane-2-carboxylate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:25957-39-5 SDS

25957-39-5Relevant articles and documents

Synthesis of all four homochiral stereoisomers of methyl 3-phenyl-1H-aziridine-2-carboxylate

Thijs, Lambertus,Orskamp Jos,Adriaan,Marielle,Eenstra, Rolf W.,Legters, Johan,Zwanenburg, Binne

, p. 2611 - 2622 (2007/10/02)

Sodium -E3-phenylglycidate (±)-2E was prepared using the Darzens' procedure. Classical resolution with 1-phenylethylamine afforded optically pure salts (+)-(2S,3R)-2E and (-)-(2R,3S)-2E. Alternatively, (±)-2E was converted into (±)-2Z by ring opening of ethyl ester (±)1E with hydrogen bromide, followed by recyclization and saponification. Classical resolution of (±)-2Z with ephedrine afforded optically pure salts (+)-(2S,3S)-2Z and (-)-(2R,3R)-2Z Treatment of the four sodium salts with sodium azide followed by esterification gave hydroxy azido esters 3, which were finally converted into the four homochiral stereoisomers of methyl 3-phenyl-1H-aziridine-2-carboxylate 5 in a reaction with triphenylphosphine and subsequent heating of the initially formed oxazaphospholidines 4.

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